Patent US4597381A successfully refreshed from Google Patents.
US4597381A
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Apparatus for monitoring an artificial internal organ
Assignee: Aisin Corp
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Filing: 1984-11-14
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Granted: 1986-07-01
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Expires: 2004-11-14
Abstract
Abstract The apparatus is intended to monitor operation of an artificial internal organ, such as an auxiliary heart, which is to be attached to the patient's body on the outer side. An optical fiber for image pick-up and another optical fiber for illumination are mounted to the artificial internal organ, and a video camera, light source for illumination, control switches, monitor television unit, etc. are disposed in a position remote from the artificial internal organ. For the purpose of enlarging the monitoring range and providing illumination of high efficiency, a mirror is mounted in the artificial internal organ. An optical axis of the optical fiber for image pick-up is arranged to be opposite or perpendicular to that of the optical fiber for illumination.
Inventors
- 👤 Takeharu Oumi
- 👤 Hideo Nakazawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:46
CPC Classifications
A; A61; A61B; A61B1/00; A61B1/04; A61B1/042; A61M; A61M60/00; A61M60/10; A61M60/122; A61M60/126; A61M60/135; A61M60/196; A61M60/20; A61M60/295; A61M60/40; A61M60/497; A61M60/50; A61M60/508; A61M60/585; A61M60/80; A61M60/855; A61M60/89; A61M60/892; A61M60/104; A61M60/109; A61M60/113; A61M60/148; A61M60/424; A61M60/427; A61M60/43
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
91 words
An apparatus for monitoring an artificial internal organ having a moveable portion comprising: an optical fiber having a part thereof fixed to said artificial internal organ such that one fore end of said optical fiber faces the movable portion of said artificial internal organ, for transmitting image information to a remote location; photo/electric conversion means coupled to the other end of said optical fiber; image display means connected to said photo/electric conversion means; and illumination means for emitting a beam of light toward the movable portion of said artificial internal organ.
Claim 2
Independent Claim
91 words
An apparatus for monitoring an artificial internal organ having a moveable portion comprising: an optical fiber having a part thereof fixed to said artificial internal organ such that one fore end of said optical fiber faces the movable portion of said artificial internal organ, for transmitting image information to a remote location; photo/electric conversion means coupled to the other end of said optical fiber; image display means connected to said photo/electric conversion means; and illumination means for emitting a beam of light toward the movable portion of said artificial internal organ.
Claim 3
Independent Claim
30 words
An apparatus for monitoring an artificial internal organ according to claim (1), wherein said illumination means is disposed in a position opposite to the fore end of said optical fiber.
Claim 4
Independent Claim
34 words
An apparatus for monitoring an artificial internal organ according to claim (1), wherein said illumination means is disposed in a position substantially perpendicular to the axis of the fore end of said optical fiber.
Claim 5
Independent Claim
49 words
An apparatus for monitoring an artificial internal organ according to claim (1), wherein said illumination means includes an optical fiber for introducing an illumination light into said artificial internal heart, and a light source for said illumination means is disposed in a location remote from said artificial internal organ.
Claim 6
Independent Claim
34 words
An apparatus for monitoring an artificial internal organ according to claim (1), wherein said artificial internal organ includes at least one light reflecting means disposed on the extended optical axis of said optical fiber.
Claim 7
Independent Claim
33 words
An apparatus for monitoring an artificial internal organ according to claim (1), wherein said photo/electric conversion means is of a video camera and said image display means is of a monitor television unit.
Claim 8
Independent Claim
47 words
An apparatus for monitoring an artificial internal organ according to claim (1), wherein a switch for controlling at least either one of said photo/electric conversion means and said illumination means as well as said image display means are provided in said driving apparatus for artificial internal organ.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |